punctured, the sides of the middle lobe and the furrows strongly closely striated. Scutellum weakly punctured, more strongly on the top of the apical slope; the apex of the latter is smooth. Sides of post-scutellum obliquely striated. Basal region of metanotum closely reticulated; the area distinct, narrowed towards the apex, but with the keels not meeting there; the space between the two keels is stoutly, closely obliquely striated; the apical slope is stoutly striated; the striæ on the middle transverse, on the sides more oblique; the two transverse keels are distinct, stout; the basal is slightly dilated at the sides, the apical bears a broad, bluntly pointed tooth. Metanotal spiracles about four times longer than wide. Tarsi closely spinose. The head, thorax, and coxæ are covered with a white pile.

Apart from the absence of red marks on the head, this species may be known by the stout transverse keels on the metanotum and by the distinct basal area.

CRYPTUS RUFOPLAGIATUS, sp. nov.

Black, a narrow line, broadest below, on the outer orbits, the mesonotum, except the sutures, scutellum, a broad line on the centre of the pronotum, a narrower, longer one on the lower edge of the propleuræ, tubercles, a large, quadrangular mark on the hinder two-thirds of the mesopleuræ above, a triangular mark below the hind wings, blood-red; a narrow line on the inner orbits, an irregular mark, broader than long, in the centre of the face, a large mark on the upper half of the clypeus and the basal half of the mandibles, pale yellow. Four front legs yellow tinged with red; their coxæ and trochanters black, their femora broadly black above; the hind legs obscure rufous; the coxæ above, trochanters, tibiæ behind, the basal joint of the tarsi, the second except at the base and the apical joint, black, the rest white. Wings hyaline, iridescent, tinged with violaceous, the stigma and nervures black.

Length 9 mm.

3.

Cape Colony. Namaqualand Distr.; O'okiep (September).

Face and clypeus closely punctured. Upper half of front in the middle closely, somewhat strongly transversely striated. Mesonotum weakly punctured, the scutellum smooth. Metanotum opaque, finely rugose, the apical slope finely, irregularly striated; the basal keel is roundly curved backwards in the middle; it, and the apical, are not very distinct; the teeth are indistinct. The red

upper part of the propleura is distinctly, regularly punctured, the lower obscurely striated; the upper basal part of the mesopleuræ closely punctured; the raised apical smooth, the lower closely punctured-reticulated, as is also, but more strongly, the metapleuræ. Areolet 5-angled; the recurrent nervure is received shortly beyond the middle; the transverse median shortly beyond the transverse basal; the stump on the disco-cubital nervure is distinct.

CRYPTUS NATALENSIS, sp. nov.

Head and thorax red; the sutures of thorax, the sides of the scutellum, base of mesonotum narrowly, the apical slope from the keel, the lower basal part of mesothorax, the middle of mesosternum, the sternal furrow, the upper edge of metapleuræ and the lower half, black; the abdomen black, the apex of penultimate and the whole of the last above, white. The anterior legs dark rufous, the four posterior black, the middle tibiæ tinged with rufous. The apex of the sixth antennal joint and the sixth to ninth joints white. Wings hyaline, the costa, stigma, and nervures black. f.

Length 10-11 mm.; terebra 3 mm.

Natal.

Centre of front transversely striated, with a smooth furrow down the middle; the sides punctured; the vertex strongly punctured between the ocelli, the sides much more obscurely punctured. Clypeus shining, smooth. Apex of mandibles black; the malar space black behind them. Mesonotum closely punctured; the apex of middle lobe closely reticulated; the furrows transversely striated. Scutellum sparsely punctured; its apical slope more closely and with a striated band on the sides. Base of metanotum closely reticulated; the middle behind the keel much more widely and irregularly reticulated; the black apical slope is irregularly longitudinally striated above and on the sides, the striæ being twisted; the centre is closely, rugosely reticulated. There is only one transverse keel-the apical; it is dilated into blunt teeth at the sides. Pleuræ closely punctured; there is a striated border on the apex of the latter; the apex of the metapleura is more broadly and somewhat strongly reticulated-striated. Antennal scape red. Areolet 5-angled, receiving the recurrent nervure shortly beyond the middle; the transverse median nervure received shortly behind the transverse basal.

CRYPTUS LEIGHI, sp. nov.

Dark red, the abdomen black, the sides of the basal segments obscure red, the apices of the last three narrowly testaceous; antennæ black, the scape red; the sixth to eighth white below; wings hyaline, the nervures and stigma black. 9.

Length 10-11 mm.; terebra 3 mm.

Natal. Durban.

Metanotum with two transverse keels; the basal is continuous, if not very distinct; the middle at the base is curved backwards, the prolongations straight, oblique, united to the sides of the areola, which is longer than it is wide at the base; the carinæ do not unite at the apex; the second keel is weak in the middle and ends laterally in blunt, short teeth; the base of the segment is rugosely punctured; between the keels it is somewhat stoutly transversely reticulated-striated; the apical slope is obliquely striated round the edges above; the rest transversely, closely reticulated-striated; the spiracles are linear, about four times longer than wide. Pro- and mesothorax closely punctured; the lower half of the former strongly irregularly striated; the punctures on the latter, at the apex, run into striæ. Sides of post-petiole depressed, rufous; the four front legs are red, like the thorax, but darker; the hinder black, except the sides and upper part of the coxæ; the spines on the tibiæ and tarsi are weak, sparse. Transverse median nervure interstitial; the stump on the disco-cubital distinct; the recurrent is received in the middle of the areolet. Front in the middle closely striated; the sides finely closely punctured; there is a narrow smooth furrow running down from the ocelli. Palpi black, lighter coloured (fuscous) at the apex. Mandibles dark rufous, the teeth black. The metasternum is black.

C. rufolimbatus, Tosq., is a closely allied form; it should be known by the punctured, not striated front; closely allied, too, is C. æthiopicus, Cam., it may be known by the apex of the scutellum being striated, not closely, finely punctured, by the space between the metanotal keels being strongly striated, especially at the apex, by the striæ on the apical slope being stronger and more transverse; the basal keel being also stronger.

ONEILELLA, Cam.

ONEILELLA FORMOSA, Bé.

Cryptus formosus, Brullé, Hym. iv. 187, pl. 41, f. 3; Tosquinet, Mém. Soc. Ent. Belg. v. 150.

Oneilella formosa, Cam., Zeit. f. Hym. ü. Dipt., 1904, 190.
A single from Durban, Natal.

The species has been reared from Anaphe reticulata.
Cameron, l.c.

OSPRYNCHOTUS, Spin.

OSPRYNCHOTUS CAPENSIS, Spin.

Cf.

Spinola, Guér. Mag. de Zool., 1841, 75; Brullé, Hymén. iv., 133; Tosquinet, Mém. Soc. Ent. Belg. v. 244.

Natal. Umvoti.

OSPRYNCHOTUS RUFICEPS, sp. nov.

Black, the thirteenth and fourteenth antennal joints entirely and the fifteenth and sixteenth below whitish yellow, the under side of the antennal scape, the head and the greater part of the prothorax, red; wings fuscous violaceous, the nervures and stigma black; the hinder tibiæ and tarsi yellow, the extreme base of the tibiæ, a band on the apex as long as the black hinder calcaria; a band on the base of the tarsi shorter than them, and the last joint of the tarsi with the claws, black. 9.

Length 21 mm.; terebra 10 mm.

Cape Colony. Port St. Johns.

Face and clypeus finely closely punctured; the clypeus distinctly separated from the face; the lower part of the clypeus finely closely striated. Lower part of front black and smooth, the upper irregularly striated; the ocellar region black. Thorax thickly covered with short black hair; the mesonotum closely, the scutellum much more sparsely punctured and shining. Metanotum closely rugosely punctured at the base behind the keel, the middle closely reticulated; the apex stoutly transversely reticulated. Propleura smooth; the meso- and metapleuræ closely strongly longitudinally reticulated. The recurrent nervure is received at the apex of the basal third of the areolet. The hind coxæ are longer compared with their width than they are with O. capensis; they are densely covered with black hair. In the sculpture of the thorax it approaches more to O. heros, Schlett., from the Congo. The hinder metatarsus is as long as the following three joints united; the last is as long as the preceding two united; in its middle are two stout, longish spines.

Comes nearest, of the three known species, to O. flavipes, Bé.; that may be known, inter alia, by the much longer ovipositor. The second abdominal segment is three times longer than its width at the apex; the basal third is distinctly narrowed; it is as long as the following two segments united; the third is twice the length of the

fourth, which is not much longer than the fifth. Mandibles red, black at the apex. Palpi dark fuscous. The third antennal joint is fully one-fourth longer than the fourth; the apical joint is rufous and is not much shorter than the preceding two united.

MESOSTENINI.

STENAULAX, gen. nov.

Wings fuscous violaceous; the areola small, square, receiving the recurrent nervure near the middle. Disco-cubital nervure not broken. Transverse median nervure received behind the transverse basal. Radial cellule of moderate length. Transverse median nervure in hind wings broken shortly below the middle. Median segment short, rugosely punctured, without any transverse keels; the spiracles long. Antennæ slender, not thickened towards the apex, not ringed with white. Anterior part of clypeus depressed, flat, smooth, and shining, the upper part raised, not clearly separated from the face by a furrow. Temples moderately long, roundly dilated, not narrowed. Front widely, deeply depressed. Abdominal petiole long, the post-petiole largely dilated; the segments are smooth, impunctate. Legs stout, longish; the tibiæ sparsely, the tarsi thickly spinose; the fore tibiæ not contracted at the base; their tarsi long and slender. Mandibles short, broad, stoutly bidentate at the apex; the upper tooth is the longer. The furrow on the mesosternum is short.

The body is entirely black. It is stouter, broader than usual with the Cryptina. It has more the appearance of a Pimplid or of one of the Xoridini than of the Cryptinæ. Its areolet more resembles that of the Mesostenini than of the Cryptini and, in the ?, which I have regarded as the type of the genus, the apical nervure is bullated. In the I have described, the transverse median nervure is interstitial; the face in the middle is more distinctly raised and separated, this being also the case with the clypeus. It has also the head and thorax densely covered with black hair. The spiracles are placed as in the genuine Cryptine, not as in the Pimpline; and I have no doubt that the genus is a true member of the former group.

STENAULAX PILOSULUS, sp. nov.

Black; the head and thorax densely covered with black pubescence; the wings uniformly fuscous violaceous, the nervures and stigma. black. 3.

Length 15 mm.